DE58902426D1 - Verfahren zur herstellung von alpha-a1203-sinterkoerpern. - Google Patents

Verfahren zur herstellung von alpha-a1203-sinterkoerpern.

Info

Publication number
DE58902426D1
DE58902426D1 DE8989106820T DE58902426T DE58902426D1 DE 58902426 D1 DE58902426 D1 DE 58902426D1 DE 8989106820 T DE8989106820 T DE 8989106820T DE 58902426 T DE58902426 T DE 58902426T DE 58902426 D1 DE58902426 D1 DE 58902426D1
Authority
DE
Germany
Prior art keywords
producing alpha
bodies
sinter bodies
sinter
al2o3
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE8989106820T
Other languages
English (en)
Inventor
Paul Dr Moeltgen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HC Starck GmbH
Original Assignee
HC Starck GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8201246&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE58902426(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by HC Starck GmbH filed Critical HC Starck GmbH
Application granted granted Critical
Publication of DE58902426D1 publication Critical patent/DE58902426D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/02Aluminium oxide; Aluminium hydroxide; Aluminates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/111Fine ceramics
    • C04B35/1115Minute sintered entities, e.g. sintered abrasive grains or shaped particles such as platelets
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00Materials not provided for elsewhere
    • C09K3/14Anti-slip materials; Abrasives
    • C09K3/1409Abrasive particles per se
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/30Three-dimensional structures
    • C01P2002/32Three-dimensional structures spinel-type (AB2O4)
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/62Submicrometer sized, i.e. from 0.1-1 micrometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/10Solid density
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/21Attrition-index or crushing strength of granulates
DE8989106820T 1989-04-17 1989-04-17 Verfahren zur herstellung von alpha-a1203-sinterkoerpern. Expired - Lifetime DE58902426D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89106820A EP0394501B1 (de) 1989-04-17 1989-04-17 Verfahren zur Herstellung von alpha-A1203-Sinterkörpern

Publications (1)

Publication Number Publication Date
DE58902426D1 true DE58902426D1 (de) 1992-11-12

Family

ID=8201246

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8989106820T Expired - Lifetime DE58902426D1 (de) 1989-04-17 1989-04-17 Verfahren zur herstellung von alpha-a1203-sinterkoerpern.

Country Status (4)

Country Link
EP (1) EP0394501B1 (de)
AT (1) ATE81334T1 (de)
DE (1) DE58902426D1 (de)
ES (1) ES2056143T3 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5593467A (en) * 1993-11-12 1997-01-14 Minnesota Mining And Manufacturing Company Abrasive grain
DE69417570T2 (de) * 1993-11-12 1999-11-18 Minnesota Mining & Mfg Schleifkorn und verfahren zur herstellung desselben
CN1120129C (zh) * 1996-03-05 2003-09-03 佐藤护郎 氧化铝溶胶的制备方法
US5728184A (en) * 1996-06-26 1998-03-17 Minnesota Mining And Manufacturing Company Method for making ceramic materials from boehmite
DE10019184A1 (de) * 2000-04-17 2001-10-25 Treibacher Schleifmittel Gmbh Formkörper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915365A (en) * 1954-06-28 1959-12-01 Pechiney Prod Chimiques Sa Method of preparing activated alumina from commercial alpha alumina trihydrate
US3226191A (en) * 1965-03-15 1965-12-28 Kaiser Aluminium Chem Corp Method of producing active alumina and the resulting product
CA1267164A (en) * 1985-12-13 1990-03-27 Harold G. Sowman Microcrystalline transition metal oxide spinel articles
US4797139A (en) * 1987-08-11 1989-01-10 Norton Company Boehmite produced by a seeded hydyothermal process and ceramic bodies produced therefrom

Also Published As

Publication number Publication date
EP0394501A1 (de) 1990-10-31
ATE81334T1 (de) 1992-10-15
ES2056143T3 (es) 1994-10-01
EP0394501B1 (de) 1992-10-07

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation